types_of_people = 10

x = f"There are {types_of_people} types of peoples."

binary = "binary"

do_not = "don't"

y = f"Those who know {binary} and those who {do_not}."

print(x)

print(y)

print(f"I said: {x}")

print(f"I also said：'{y}'")

hilarious = "False"

joke_evaluation = "Isn't that joke so funny?! {}"

print(joke_evaluation.format(hilarious))     #.format 要在已经创建的字符串上应用格式化

hilarious = "False"

joke_evaluation = f"Isn't that joke so funny?! {hilarious}"

print(joke_evaluation)

w = "This is the left side of..."

e = "a string with a right side."

print(w + e)